Box-making machine.



t0. m 5mm. BOX iKN CHiNE.

APPLICATION FILED AUG.2T, 1915.

Patented sepia, 9, Y1916.

` 5 SHETSr-SHEET I @www c. R. 5mm. BOX MAKSNG MACHINE.

APPLIC'HON FILED AUG.2. 191i ment-@d sept. 19,1916.

wwwa,

5 SHEETS-SHEET 2.

wm @NN NNN @v @www fr ma C B. EKLR.-

BOX MAKING lv'ACHNE.

APPucATloN FILED Auen?. |915.

aned Sept. 19, 1916.

5 SHEETS-SHEET 3 lul NW v.

C. R, EIKLER BOX MAKING MACHINE.

APPLlcArxoN man AuGz, 1915.

Patented Sept 19, 1916.

5 SHEETS-SHEET 4.

C, R. EIKLER. BOX MAKING MACHINE.

APPLICATION FILED AUG.27. 1915.

i 4a citizen of in the county of Cook, State ofV b sierras PATENT OFFICE. f

'CHARLES R. EIKLER, OF CHICAGO, ILLINOIS,'ASSIGNOR TO SPENCER J'. JOHNSON CHICAGO, ILLINOIS.

BOX-MARIN G MACHINE.

mossos.

Specification of Letters Patent.

. Patented Sept. 19|,L 1916.

To all whom it may concern: i

Be it known that I, CHARLES R. Erme, 'the United States, residing at Chicago,

Illlnois, haveinvented certain new and useful Improvements in chines, of which the following is a specication, reference being had to the accompanying drawings.

a y invention relates to box making machines of Vthe type shown invmy application for Lettersl Patent of the United States, Se

. rial No.. 35,327, led June 21, 1915, and it has for one of its objects the provision of new and improved means for feeding forward the cleats or strips for the'format-ion of the box blank. y It is another object of my invention to improve machines of this type in sundry de` tails hereinafter pointed out.

The preferred means by which I have accomplished these several objects are illustrated in the drawings and are hereinafter specifically described. That which I believe to be new and desire to cover by this-application is set forth in the claims.

In the drawings: Figure l is a side View of a box 'making-machine embodying my 55: through my machine,

substantially on line and 4.-; Fig. 7

i upon the driving shafts .for driving the` 4a F improved construction; Fig. 2 is a partly in section, of the machine vkF ig. 1; Fig. 3 is an enlarged substantially a section taken on lineA 3 3 of- Fig. 2; Fig. 4 is a longitudinal section being a View taken 4-1 ofFig. 2; Fig. 5 1s ,a top 4view of a box blank of the type adapted to be formed by my improved yInachine; Fig. 6 is an end view of my improved ,machine as seen from the -right in Figs. 1A is an enlarged detail showing Vthe arrangement of the sprocket Wheels -top View, shown 1n chains by whichthe cleats are fed forward; ig. 8is a. Aview showing the arrangement ojthe means for transmitting motion to the driving shafts shown in Fig. 7, being` 'substantially a section taken on line 8-8 F ig..6; Fig. 9 is a central section through one of the friction clutch mechanisms by which power is applied to the shafts of Fig. 7, the View being' substantially a section `taken on line 9 9 of Fig. 8; Fig. l0-is a section taken on line l-l0 'of Fig. 9; Fig. 1l .is a diagrammatic view showing the' ar Box-Making' Ma- .machine is designed detail, being ,Step by rangement of the clutch mechanism andthe parts for operatingr the same for procuring the desired change in the lengthr of stitch etween adjacent wide and narrow sides of the box blank; Fig. l2 is an enlarged detail showing tlie manner of mounting the cleatforwarding devices upon the forwarding chains; Fig.'13 is an enlarged detail illustrating the form of cleat-forwarding mechanism carried by the forwarding chains for properly spacing'adjacent box blanks relaals t1ve to each other in theprocess of formation; andH Fig. 14 is an enlarged detail, being a central vertical section through a modified form of structure 'corresponding to a portion of the showing of Fig. 9.

In Fig. of the drawings is illustrated the form of box blank which my' improved4 to form. It will be noted that the form of boxblank here illus'- trated differs slightly from the form of box blank shown in Fig. of my former application above referred derstood that the present machineis capable of being arranged to form either the'blank illustrated in Fig. 5 of the present drawings or the blank illustrated in Fig. 5 of the former application. The blank shown .in the present drawings is made up of four sections each` comprising spaced apart and joined' the four sections being binding wires secured to the boa-rds by staples 2l. The adjacent the blank are different in size, the cleats and boards entering into the formation of the wider sections being indicated bythe nuby a sheet or board, joined together'by merals 2223, respectively.I and thecleats' and boardsv entering into the formation of the narrower sections being indicated by the numerals 2li-*25, respectively. The Staines 21 by which the binding wires'20 at the ends of the sections are secured to the `boards are of such a length as to pass well into 'the cleats or strips, while the staples 21 -by which the-intermediate binding wires 20 are secured to the boards are shorter, being adapted to p`ass have their ends offset or clenched.

My improvedV machine operateagenerally speaking, in the same manner as does the machine of my former application, comprising means for forming and driving the staples 21, togetherwith means for feeding step into proper position for the to, but it will be untwo cleats or strips" sections forming.

through the boards and to is such that the frictional driving means- 9- lacayos staple-driving operation the element-s entering into the formation of the blank. The arrangement is such that the blank-in the process of formation is advanced one step and one row of staples is driven for each complete revolution ofthe inain driving shaft. As in my 'firmer machine, the elements making up the blank are fed forward by power applied to the cleats or strips 22-24, the binding wires being pulled yforward by reason of their attachment to the cleats or strips. K

The means for feeding the cleats or strips' 22 24 forward 'at each side of the machine comprises four dogs oi carrier-lilocks which are adapted to be drawn forward intermittently by a plurality of endless chains which are given -positive intermittent `moveinents in unison. ln the construction shown the cleats or strips 22-24`areini`ived forward along suitable slideways.y two chains being provided `for cai-h dog` one iiponeach side of the slidewav` each of the dogs being mounted upon and carried by its two chains. The dogs serve not only to forwardthe cleats but also to space them properly relative `to each other for the ,formation of the desired blank. One of the dogs is'of considerably greater length than the remaining three, the

longer dog being eniployed for lproviding the proper spacing 7between successivelyforined blanks so as to :provide proper lengths of binding 'wire yfor tying purposes for securing the ends of the blanks together when folded into b oX forni. The positive intermittent driving 4means for the chains of each dog comprises pawl and ratchet mecha-4 nism adapted to permit, any two chains to travel at an increased rate lf speed. Auxiliary driving'i'rieans is provided adapted to drive the four chains oteach two dogs which are arranged transversely opposite each other when such dogs are released from A engagement with the blank in the process of formation for carrying such dogs from the front end of the machine to the rear end of the slideway for spacing and forwarding the.

corresponding cleats of the heilt-succeeding blank. This auxiliary forwarding. means in the construction shown comprises frictional drivingineaiis which 'tends at all times to drive the chains at an increased speed relative to the positive intermittent driving` but which 'is effective only when the dogs are released from the blank. The arrangement automatically picks up and carries around the two oppositely-disposed dogs as soon as they are released from a blank, carrying the dogs forwardl at the increased speed by reason of the slipping of the positive driving pawl upon its ratchet, the frictional driving at increased speed continuing until the progress of the dog is stopped by reason of the dog being brought into Contact the rear end of a cleat placedin'position in the slideway by an operator, the forward end of the cleat being in Contact with the slower' moving blank. Means is provided for retarding the. advance of the blank through the machine. In the construction shown such retarding means operates frictionally upon the' cleats of the blank, serving to hold the` blank against forward movement regardless of the pull of the high speed frictional driving means, but adapted to permit tively-acting driving means.

efe'rring now to Figs. 1 to 13, inwhich corresponding parts are indicated bythe same reference characters, 26-27 indicate standards joined by heavy cross-bars 28#- 29, the cross-bar 29 being preferably ad- `the forwarding of the blank by the :posiso i justable vertically upon the standards in 'I any suitable manner, Two heavy side plates 30H31 are fixed at their forward ends upon the cross-bar 29, the plates at each side of the machine being preferablyin the form of a channel as shown in Fig. 3. The rear end of the plate 31 is fixed upon a heavy supporting bar 82, and the rear end ofthe side. plate B0 is slidably'mounted upon said supporting bar 32, standards 33---34l of an: suitable type being provided for support,L ingl the bar 32 at its ends. Twotra'nsverse shafts 35-86 are revolubly mounted in the plate 31 and held against movement trans' versely of the machine, said shafts having screw-threaded connection with the plate,

30. The said two shafts are connected by means of a sprocket chain 37 passin about sprocket wheels 38-39 whereby the two shafts are caused to rotate in unison. The shaft is provided with a squared head 40 adapted to receive a suitable tool for turxr beV shifted late `ally toward and from the side-plate 81 as may be desired.

ln the construction shown, the main'drive through the medium of internieshing gears 'llel, the shaft 42being driven by a motor I` ing the shaft whereby the side-plate may.

Iliff? 45 through the medium of intermeshng i gears @i6-4'?. A foot lever 48 and suitable clutch mechanism of any siiitable-type are i provided for connecting the gear 43 with the shaft 41, the arrangement in the con- I struction shown being such that the gearuf.

43 is adapted to vrotatethe shaft 41 when the lever 48 is held in its lowered position, and

,the connection between the shaft 41 and the Igear 43 is adapted to be automatically terminated when the downward pressure upon the lever 48 ceas. The shaft 42 is provided with speed changing mechanism of any suitable type located in thel transmission box` vso ' 67; the outer faces ofz'which are flushk with other.

. them herein.

f Each of the side plates 30-31 is provided with a plurality of groovesl 1n. its upper face, in the construction shown each of said plates being provided with nine grooves, the

central groove. 53 serving as the' slideway for the cleats or strips 22-24. In each of the four grooves o n each side of. the central groove 53 thereis mounted one of the endless chains by which the forwarding and spacing devices are carried forward. Two chains 54 are provided in the innermost grooves adapted to coperate with' ,each other. Two chains 55 coperate with each Two chains 56 are employed for forwarding a third spacing device, and two chains 57 coperate with each other for4 carrying the fourth spacing' device. Each pair of chains 54, 55 and 56 are operatively connected by means of carrier blocks 58 in the form of transversely-extending bars journ'aled at their ends in cam-shaped blocks 59 60 carried .by the 4said chains. The outermost chains 57 are cohne'cted by 4means of a. pair of spacing` and carrier blocks 61-62 journaled at their ends in suitable blocks carried by 'the said chains. The blocks icarried by the chains 57 at each side of the machine for supporting the transversely-extending bar 61 are numbered 63-64,respective'ly, and the blocks carried bythe said chains for supporting the transversely-extending 'hars 62 are numberedl 65-66, respectively,;`l The'links of the chain 57 between'the blpcksfi63-65 and between the blocks 64-66iareprovided"with blocks the outerfaces f the they are located.' I

The chains 54;- 55, 56 and 57 at each side of the machine are supported by suitable sprocket .Wheels mounted upon shafts 68 adjustablymounted upon the rear ends of the side plates 30-31. -At their forward ends the chains 54, 55, 56 and 57 are. supported blocks between which by transverselyextending shafts 69, 70, 71

and 72. The shafts V69, 70, 71 and '72 are suitable bearings mounted upon the standard 26 and are suit'- ably supported at their other ends and interinediately -by heavy plates or, brackets 73-74 *carried by the side plate 30 and heavy plates or h1 :ckets 75-76' carried -by the side plate 31. Mounted upon the .shaft G9 between the plates or brackets 7 374 and between the plates or brackets 75-76 are two sets of sprocket wheels S77, 78, 79, 80, 81,

82, 83 and 84. Mounted upon the shaft 70.r

in like manuel` are two gears 85, 86, 87 are two sets of sprocket gears 89--90,V and;

sets of sprocket upon the shaft 72 vare mounted two sets of,

sprocket gears 91-92. Thevarious sprocket wheels upon the said shafts 69-7'0-71-72 arespaced upon the several shafts pairs, as illustrated in Figi 7, forreceiviii'g. and supporting the chains 54, 55, 56 and 57. The

and 88. Upon the shaft 71` sprocket gears 77,78, 79, 86, 82, 83, 81 and 87 are looselymounted upon the various shafts, while the remainingr sprocket gears 80, 81, 85, 88, 89, 90, 91 and 92 are adapted to rotate with the shafts upon which they are mounted respectively, all of the saidgears between the brackets or plates 73-74 being slidable upon the several shafts to provide for the ,lateral adjustment ofthe sideplate 30 as above described. By the arrangement above described the four chains 54 are adapted to be driven by the shaft 69; the four-chains 55 are adapted to be driven by the shaft 70; the four chains 56 are adapted to be driven by the shaft 71; andthe four chains 57 are adapted vto be driven by the shaft 72.

The means for frictonally driving the shafts 69-70-71-72 comprises sprocket .wheels 93 mounted upon the said shafts,- as

hereinafter described, which are `connected by means of a sprocket chain 94 with the sprocket wheel 50 which-is adaptedto be driven at variable speed fromthe shaft 42 as above described. A plurality Aof idlers 95 are used in connection .withfisaid sprocket chain as best illustrated the sprocket wheels 93 Ais mounted upon its shaft by means of afriction clutchniechanism. Such friction clutch mechanism com- .prises a sleeve 96 fixed/upon the shaft havas bestshown in Fig; 9. The gear 93 is fixedy upon a sleeve 98 which has a beveled annular pressure-ringlOO is held by means of 'acollar 101; in effective engagement with the in Fig. 8. Each of' portion 99 conform-ingtothe shapeA of the adjacent portion of the head 97. Af

ing a head,97,4 one face of which is beveled v so vas to` beadapted to be' adjusted thereon.

In the pressure-ring 100 eomprisesa sleeve provided -with a pluralityof openings therethrough containing compression coiled springs 1 03. As will be xdilyaimiilerstood, the pressure of the sprl' `2,831.03--^wil1 be transmitted through the weaifing-ring 102,130 the sleeve 98, causing a frictional-engagee'nt `betweenl the beveled annular" portion construction shown inFi'g: 9, the.

Y together the blank shown in Fig. 5, four staple forming and driving mechanisms are employed with four plungers 132. The staples 2l are adapted to be formed by the mechanism out of staple wires 134 which are adapted to be fed to the staple forming mechanism by thei means hereinafter described, there being as many wires134 as there are binding wires 20, as will be readily understood. A" staple 21 is formed and driven upon each operative downward stroke of the cross-head 128, unless there has been a failure to feed the staple wires 134 to the staple-forming devices. In case of such 'a failure to feed the wires 134, the stapleh forming' and driving mechanisms pass through their several evolutions without having any effect upon the blank or upon the machine. Shoes or anvils 135 are adjustablymounted upon the cross-bar 29 for the intermediate staple driving devices 133 for the purpose of clenching the staples 21 for holding the intermediate binding wires 20 upon Afthe boards 23-25. Inasmuch as the `to be lstaple forming and driving mechanisms may be-of any approved type, `it is not believed necessary ,to further illustrate or describe vthem herein. X

Y .lhein means for feeding the staple wires 134 orward at the proper time comprises a bar 136v provided with a roller 137 bearing upon a suitable cam 138 carried by the mainl driving shaft 41 ,(see Fig. 6), the arrangement being such that the bar 136 (see Fig. 1) operates in proper timed rela-tion on arm .139 mounted upon a *transverselyextending shaft 140 for forwarding the Wires 134 by suitable gripping rollers 141 (see Fig. 4) mounted upon said shaft. An arm 142 (see Fig. 1) is revolubly mounted upon the shaftfl40 adapted by a movement in counterclockwise direction in`said figure to throw out of operation the staple wire forwaigding` mechanism. Inasmuch as this stapfe forwarding mechanism and the means for throwing it out of operation forms no part of my present invention it is not bedownwardly-extending .link

lieved to beA necessary to4 further describe itherein. Preferablythe mechanism is of the type disclosed in my previous application, Serial No. 355327, above referred to, comprising a shaft 143 provided with a downwardly-extending arm 144 (see Fig. 11) which is pivotally connected bymeans of a link 145 with the upper end of the arm 142. The shaft 143 is also provided with a rearwardly-extending arm 146 which is connected witlra downwardly-extending link 147 which` carries at its lower end a stud or roller 1 48 (see Fig. 6) which extends over four ofthechains 54-55-56-57. A link 149 serves to connect theV lower end of the 14.7 with the 31 as best shown Fi'. 2. As

1side plate o the diasprocket wheel 1 571 grammatic view of Fig. 11, whenever one out of action.

the cam-shaped block 64 serves to raise the stud or roller 148, the blocks 67 and l66- serve to hold the roller in raised position thus preventing the feeding of the staple wire untii another cleat 24 is in position to receive a. staple.

AS will be readiiylunderstood, the distail through which the forward end ofthe lever be moved when actuated fulcruin-block 112 along the slot 114. As the fulcrum-block in Fig. 1, the extent of the movement of the forward end of the lever 111 upon an actua'- tion of said lever through the connecting link 106 will'be increased, with a corresponding increase in the extent of rotation of the shafts `increase in the extent of movement `of the chains 54, 55, 56

and 57, and the carried forward by said chains.

bqx blank Iris thus passes swinging the arm wire feeding mechy 114 1s moved to the left 69, 70, 71 and 72, and a similar apparent that by adjusting the arm 113 the wires 20 can be varied' as desired. Themeans for adjustingthe position of the arm 113 which carries the fulcrum-block 112 for bringing about a variation in the length of stitch comprises a socket member 150 pivot- -ally connected with the upper end arm 113, a socket member 151 adapted held as hereinafter described, and a rod having screw-threaded connection with said two sockets for drawing them together or for moving them away from each other. It will thus be appreciated that the length of stitch can be varied by an adjustment of the screw-threaded rod 152. l

The means for automatically varying the vdistance between staples along the 'binding i' I maV of the` to be. 152

stitch so as tohave the staples 2l fartherl pivotally connected, the connection of Asaid socket membennvith the plate being adjustable toward and from the axis of rotation of the said plate' by means gear 155 is provided rotatable with 153. The gear 155 is driven by means offa gear 156 (see Fig. 6) which is adap" be drivenintermittently by a sprocket` 157 which is driven continuuslyl L of a sprocket chan 1|58y wory sprocket wheel i159 mounted-'n of the shaft/.4.2. lahe conn' n im .the y pgliiis-such of a slot 154. .A

the plate 6 nioenos wheel 157l are both mounted upon a sha-ft 160 A(seeFi'g. 11). The clutch mechanism comprises a slide-block 161 which is provided with lanspring 1.62 tending to hold it at'the limit of its'movement toward the' shaft 160. The construction is such that when the block 161 is moved Ato the right in Fig. 11 connection is established between the sprocket wheel'157 and the gear 156.

' The' clutch mechanism is such that at the end of a single complete revolution of the shaft 160 the connection between the sprocket Wheel 157 and the gear A156 is broken as above set forth. Inasmuch as this clutch mechanism forms 'no part of my present invention and is, formed substantially in accordan with. the showing of my applicaltion, Serial No. 35,327, above referred to, it

is believed to be unnecessary to describe Yit further in detail herein. Thev gear 156is one-half the size of the gear 155, wherefore it follows that the rotation of the plate 153 is stopped upon each actuation at the end aio of a single half revolution. vinasmuch as the socket member 151 is connected eccen- 'trically with the plate 153, it will be understoodthat the successive rotating'movements of the said plate 153 serve to swing the arm`113`alternately to the right and the left, correspondingly decreasing and inlcreasingthe"length-of stitch ot' the binding Wires 20.

The/means for moving the block 161 to the right or throwing the clutch inechamsm into operation is similar to that shownl in my previous application, comprising a push-bar 163 'connected with the end of an arm 164 carried by the shaft 143. Upon the upward movement of the link 147 by fi- "adapted to be engaged by a cam 166 rotav'l table with the shaft 160 for disengaging the reason of the roller y148 being raised bythe cam blocks -`64, the bush-bar 163 will vbe given a movement to the right in Fig. 11

sition -until they roller 148 has cleared the To prevent the pushbar'163 from holding the block 16,1 pushed i to the righi of Fig. ii, ai@ Saai unie ica is provided With a roller 165 which is push-bar4163 from the block 161. Thus the plate 153 is insured against being given more Ithan one half revolution for any one actuation of the shaft 143 by one of the cam blocks 60-64.

The pla-te y153 is provided with a brake mechanism 167 of any suitable type for `stopping the said plate at the end of its positive actuation.

operator near the forward cnd olj the machine holds the Yoot lever 48 down so as to canse a continuons rotation ot the main drive shaft 11 as desired. :in assistant at the rear cud of the machine places the cleats or strips '2L-24 in the slideways at both sides ot' the machine. The operator at the forward end of the machine places the boards in position upon the cleats 2Q-24 as the properly spaced cleatsare intermittently t'ed forward above described. Another assistant -at the `forward end ot the machine cuts the binding wires 2Q between the blanks after a suiiicient number of rows ot staples Q1 have been driven into the new blankl to liold the binding wires Q0' against yslipping relative to 4the new d ,Byreasono the pivotal mounting of the4 carrying and spacing blocks 5Sf62 upn the chains 54--55,-56-5T, vthe said blocks are `adapted very readily to free. themselves ironi engagement between the adjacent cleats 22-24 at the orwardend of the machine. So 'tar as l ain aware. l am the first inthe art to provide for thus mounting the carrying blocks in a device of this type and my claims are to be construed accordingly.

What I claim as my invention and desire to secure by Letters Patent, isi,

1. In a box blank makingmachinc, .the combination oi" a. slideway Aalong which cleats are adapted to be forwarded,.spacing blocks adapted to space said cleats apart, vand 'means for moving said spacing blocks for forwarding said cleats, said spacing blocks being arranged to turn` on horizontal axes Vupon the parts oi' the forwarding means upon which they are mounted for disengagement directly downward Afrom the cleats at the end of the yforward movement ot such spacing blocks.' l

` ln a boxblank making machine, the

combination of a slideway along which.

cleats arc adaptedto be forwarded for the tormation of a blank, an l endless chain adapted to revolve adjacent vto said slideway,

means tor revolving said chain, and a spacing block pivotally connected ,with said chain and adapted to space apart two cle-ats in said slideway, said spacing block being adapted byits movement with said chain to forward said cleats along the'slideway and being arranged at the end of its forward movement' to turn-'relatively to said Vchain for .sliding out 'of enga'gement with said spaced cleats. f

Meegos 3. In a box blank making machine, the combination of a slideway along which cleats are adapted to be Jforwarded for' the formation or' a blank, a 'pair of endless chains adapted to revolve on opposite'sides of the slideivay, means for revolving said chains in unison, and a spacing block journaled upon said two chains and adapted to space apart two cleats in said slideway, said spacing block being adapted by its movement with said chains to forward said cleats along said slideway and being arranged at the end of its forward movement to turn relatively to said chains for sliding verti cally out of engagement with said two cleats. 4

i. In a box blank making machine, the oombinationof a slideway, a carrier block adapted to move a cleat along said siideway, an endless chain "adapted to forward said carrier block, frictionally-a'cting means for driving said chain for moving said carrier block through a portion of its operative A movement, a spring-pressed arm adapted to friotionally engage a cleat in said slideway- 25 serving to hold the cleat against forward movement by said frictionallyhcting forwarding means, and positively-acting means for driving said carrier block.

5. In a box blank making machine, the combination of a slideway, a carrier block adapted Vto move a cleat along said slide- Way, an endless chain 'adapted to forward said carrier block, frictionally-acting means for driving said chain for moving said carrier block through a portion of its operative movement, an arm pivotally mounted :tdjacent to said slideway adapted to be swung into frictional engagement With the side of a cleat passing through said slideway, yielding means tending to move said arm into strong friotional engagement with said cleat whereby said frictionally-acting drivin means is unable to `forward said cleat, and positively-acting means for driving said carrier block.

CHARLES R.- EIKLLF: 

